I have just purchased a new house I will be complete redoing the bathroom it has pink tile from the 50's. And will be replacing it with bead board this is going to add almost 2 inches behind the toilet. We have not remove the toilet yet but my question is if its a 12inch rough in now. I know they make 14inch rough in toilets but I have not been able to find one that we need elongated ADA height.Is there someway to extend the flange without having to complete redo it. The house has a concrete foundation.